A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6130-00-248-3259
NSN 6320-01-422-0741
NSN 6150-00-171-9445
NSN 5999-01-008-0986
NSN 5945-01-467-9886
NSN 6610-01-058-2366
NSN 6610-01-601-7648
NSN 5975-01-608-1603
NSN 6645-01-329-1779
NSN 5999-01-170-6058
NSN 5950-01-263-1165
NSN 6320-00-593-0379